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| author | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-19 12:39:17 +0000 |
|---|---|---|
| committer | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-19 12:39:17 +0000 |
| commit | d5065e6e5546d31ca14bdf7105d94ca845b2a885 (patch) | |
| tree | b7f4e93614d364fb2bd6d9376c85d35b25544854 /gcc/config/alpha/alpha.c | |
| parent | 598006de8ec8b8edd22ce29c3def8d871eb52fc8 (diff) | |
| download | gcc-d5065e6e5546d31ca14bdf7105d94ca845b2a885.tar.gz | |
2012-12-19 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* target.def: Define canonicalize_comparison hook.
* targhooks.h (default_canonicalize_comparison): New prototype.
* targhooks.c (default_canonicalize_comparison): New function.
* doc/tm.texi: Add documentation for the new target hook.
* doc/tm.texi.in: Likewise.
* combine.c (try_combine): Adjust to use the target hook.
* config/alpha/alpha.h (CANONICALIZE_COMPARISON): Remove macro
definition.
* config/alpha/alpha.c (alpha_canonicalize_comparison): New
function.
(TARGET_CANONICALIZE_COMPARISON): New macro definition.
* config/arm/arm-protos.h (arm_canonicalize_comparison): Remove
prototype.
* config/arm/arm.c (arm_canonicalize_comparison): Add new
parameter.
(TARGET_CANONICALIZE_COMPARISON): New macro definition.
* config/arm/arm.h (CANONICALIZE_COMPARISON): Remove macro
definition.
* config/s390/s390-protos.h (s390_canonicalize_comparison): Remove
prototype.
* config/s390/s390.c (s390_canonicalize_comparison): Add new
parameter.
(TARGET_CANONICALIZE_COMPARISON): New macro definition.
* config/s390/s390.h (CANONICALIZE_COMPARISON): Remove macro
definition.
* config/sh/sh-protos.h (sh_canonicalize_comparison): Remove
prototype.
* config/sh/sh.c (sh_canonicalize_comparison): Add new prototype. New
function overloading the old one.
(TARGET_CANONICALIZE_COMPARISON): New macro definition.
* config/sh/sh.h (CANONICALIZE_COMPARISON): Remove macro
definition.
* config/spu/spu.c (spu_canonicalize_comparison): New function.
(TARGET_CANONICALIZE_COMPARISON): New macro definition.
* config/spu/spu.h (CANONICALIZE_COMPARISON): Remove macro
definition.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194608 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/alpha/alpha.c')
| -rw-r--r-- | gcc/config/alpha/alpha.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 84112182426..fa2f7335881 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -9686,6 +9686,30 @@ alpha_conditional_register_usage (void) for (i = 32; i < 63; i++) fixed_regs[i] = call_used_regs[i] = 1; } + +/* Canonicalize a comparison from one we don't have to one we do have. */ + +static void +alpha_canonicalize_comparison (int *code, rtx *op0, rtx *op1, + bool op0_preserve_value) +{ + if (!op0_preserve_value + && (*code == GE || *code == GT || *code == GEU || *code == GTU) + && (REG_P (*op1) || *op1 == const0_rtx)) + { + rtx tem = *op0; + *op0 = *op1; + *op1 = tem; + *code = (int)swap_condition ((enum rtx_code)*code); + } + + if ((*code == LT || *code == LTU) + && CONST_INT_P (*op1) && INTVAL (*op1) == 256) + { + *code = *code == LT ? LE : LEU; + *op1 = GEN_INT (255); + } +} /* Initialize the GCC target structure. */ #if TARGET_ABI_OPEN_VMS @@ -9853,6 +9877,9 @@ alpha_conditional_register_usage (void) #undef TARGET_CONDITIONAL_REGISTER_USAGE #define TARGET_CONDITIONAL_REGISTER_USAGE alpha_conditional_register_usage +#undef TARGET_CANONICALIZE_COMPARISON +#define TARGET_CANONICALIZE_COMPARISON alpha_canonicalize_comparison + struct gcc_target targetm = TARGET_INITIALIZER; |